Reversible jaw combination wrench



MMX?

Aug. 30,1932.v 4 R HlL-rz 1,874,751

REVERSIBLE JAW COMBINATION WRENCH Filed April 9,- 1951 F15-1- fief-2a iii-E- v ATTORNEYS Patented Aug. 30, 1932 UNITED-STA EEGINALD EILTZ, or BROQKLINE, ivrnssAonusETTs. `r

Applieationcled April 9,`

Y This invention relates to wrenches and particularly to combined monkey Wrench and pipe wrench, the object being to provide an improved construction wherein the parts 6 may be readily adjusted so that the wrenchmay act in either case, as an ordinary monkey wrench for turning nuts and the like or as a pipe wrench for turning pipes and other round objects.

Another object of the invention is to provide an improved wrench wherein one of the jaws may be readily reversed so asto present a serrated edge or a straight flat edge to the opposite jaw.

A further object of the invention is to pro vide a wrench provided with a shank and stationary jaw and a sliding jaw stock with a movable and reversible jaw carried thereby, the structure being such that the jaw may 20 be reversed or moved without the use of tools.-

An additional'object, more specifically, is to provide a wrench wherein the worm or adjusting screw and associated parts are so formed as to function and to remain in prop-jl er functioning position without the use of' screws or similar means.

In the accompanying drawing-A Figure 1 is a side view of a wrench disclosing an embodiment of the invention.

Figure 2 is an edge view of the wrench shown in Figure 1, part of the handle being broken away.

Figure 3 is a sectional view through Figure 2 approximately on line 3 3.

Figure 4 is a transverse sectional view through Figure 1 on line 4 4.

Figure 5 is a transverse sectional view through Figure 1 approximately on line 5-5.

. Fig. 6 is a detailed perspective view of a filler block disclosing certain features of the invention.

Figure 7 is a perspective view of the adjustable aw stock casing.

Figure 8 is a detailed fragmentary view partly in section showing the connection between the adjustable jaw retaining pin and its supporting spring. n .Y

Referring to the accompanying drawing by numeral, 1 indicates a stationary jaw merging into the shank 2 which in turn 1931. serialivo. 528,928.

merges .intowhat may be termeda handle 3.; The fshank 2 is substantially rectangular Y in cross section. andis providediwith-gear teeth 4 adaptedto coact with thefthreads lof the worm orscrew 5. Straddling, the shank I6 2 is the adjustable jaw stock 'casing 6 which is `*supplied with the'iiller block1 7 andassof` ciated parts to make the complete reversible",y jaw stock 8 as shown in Fgnrel. Thisjaw stocl; which coacts -Withjawl whenthe wrench is in use. Jaw 9 is provided .with astraight surface 1 0 which is used whe-nnuts orfsimil lar articles are being actuated but when ay pipe or round object is to be 'actuatedy the Il jawv isgturned over so; that Vthe toothedor serrated `lor inclined edge 11 will function as illustrated in Figure 3. The inner end of the jaw.y `9 is chamteredfat 12 and 13 so Ias to allowthe `jaw vto readily slide over-the 7o` teeth 4; and also to allowA the jaw to rock when used as a pipe wrench. When` aypipe orjother round object is gripped `andfpower,

is applied to the wrenchthesurface 10,y will swingbackandstrike the surface .or` abut# 7,5 ment 14 onthe filler block 7. As illustrated in Figure?, thecasing 6y is provided with a number'of apertures 15-which receive. the

respective rivets 16, which rivets;'eXtend through thefrespective apertures 17 ofblo'ck 80` 7; whereby the block 7 isrigidly secured to thecasi'ng,y 6. lThe casing is provided with aysuit'able aperture 18 for V.'accoinmodating the reversible-jawq19 carried by the arcshaped spring 20. This spring is-provided 8,6 with a spur or elbow 21 extending into the notch 224while1the rivet 23extends through the aperture 24 and iirmly secures theend of thespring tothe casing 6r y -Referringagain to Figure 6, it .willbe QQ seen that the-,block7 is provided with asub- Y stantiallyrectangular notch or cutaway porf.I tion 25 whichmerges into dovetailed notches 23 and 27, said dovetailed notches accommodating the truncated cone-shaped,` ends 28 DQ and 29 `of the worm or screwh. These ends arerintegral with the worm "5 and areof a` j sizefto,y rotatably fit into the notches 26' and 2,7 as shownfinFigure3. fThis arrangement permits these end orjournal members totake accommodates the reversiblejaw'f) 60 the end or longitudinal thrust of the Worm or screw 5. It will be noted that the sides or cheeks of the casing 6 act to confine these end'members in notches 26 and 27 asl clearly illustrated in Figure ,5. It Will thus be seen that there are no screws, pins or the like used in retaining the Worm orscrevv in place. This'produces 'a simple and very strong construction as the extensions orend members 28 and 29 are integral and are of an appreciable size compared with the Worm 5 so that they can take care of all the strain brought to bear thereon.l In order that the thumb and finger of the operator Amay en;

:actuated as, for instance, 'it -be desired to actuate a round object, the

gage the Worm 5, the casing 6 is provided With notches orfcut-out` kportions-30 and 31 vandthe Worm 5 is made of a size toslightly project lthrough these notches as illustrated in Figure 2. f

VlV'hen the parts are in the position shovvn in Figure V1, squareor flat objects may be nuts, but should hand of the operator Will grasp the free end of spring 2O and pullthe free endof pin 19 out to substantially the dotted position shovvn l' in Figure 2. The jaw 9 is then grasped and moved out of the casing 6 after Which it lis reversed and placed back-in the i' casing as shown in Figure 8. Pin 19 is then replaced and the Wrench is in proper conditionv to actuate a round object'. It will thus beseen that Without the use'of tools,

the adjustable jaw the Wrench may be converted froml an orrigidly connected with said casing and formed With teeth at one end and a reversible toothed j avv carried by said casing and resting `aga-inst one point of said filler block when in lone position and when in a second position having the teeth thereof meshing Withthe teeth carried by said lillerrblock.

f REGINALD HILTZ.

dina-ry monkey Wrench to a pipe Wrench or the reverse., Vhen used as an ordinary monkey wrench, the serrations or teeth 11 vare adapted to fitv` snugly into the teeth or 'ser-V rations 32 on the end of the filler block 7. y

In this Way part of the strain is taken up by the filler and part by thepin 19. `Also this structure causes the adjustable javv 9 to remain substantially rigid in respect to stock 8, thus presenting said reversible jaw having serrations onlone f surfacev adapted to mesh With the serrations on said stock When the reversible jaw is in one position. Y Y

2.111 a Wrench of the character described,

' a sliding javv stock vformed With a substantially U-shaped casing, ay shank extending' through said casing, said shank being provided With a stationary jaw, 'a ller block 

